In the study the researchers infused chemicals which block digestive enzymes into the intestines of seriously ill rats.

BBC: News

Defects in it cause the pancreas to dissolve in infancy, necessitating a lifetime on pig-derived digestive enzymes and vitamins.

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"The digestive enzymes are powerful - they have an amazing ability to digest most biological material, " Dr Schmid-Schonbein said.

BBC: News

Their quest: microorganisms that survive in extreme surroundings by producing digestive enzymes that excel in withering heat and pressure--ideal for an industrial refinery.

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They created linaclotide out of 14 amino acids, 6 of which are cysteines that bind so tightly they keep the whole from getting dissolved by stomach acid or chewed up by digestive enzymes in the intestines.

FORBES: Brains Over Guts

They exposed gliadin to digestive enzymes in test tubes and were able to identify a protein fragment made up of 33 amino acids that was resistant to further digestion and whose structure was known to be toxic.

BBC: Cause of dietary disorder uncovered

Twenty-two years ago Francis Collins, who would go on to head the Human Genome Project and run the National Institutes of Health, was part of a team that found the gene that, when mutated, caused cystic fibrosis, a deadly childhood disease in which the lungs fill with mucus and the pancreas does not make digestive enzymes.

FORBES: A Big And Dangerous Day For Personalized Medicine

These fluids contain enzymes that break down food as part of the digestive process.

CNN: What could be causing my pancreatitis?